The 6 Best Fuel Pressure Testers

This wiki has been updated 19 times since it was first published in August of 2019. For a professional mechanic, a fuel pressure tester is an indispensable piece of equipment. It allows for the speedy diagnosis of stalling or failures to start caused by gas pump and flow problems. Our selections considered features such as versatility, build quality, and affordability. Note that working with fuel systems can be dangerous and should only be done by trained automotive technicians. When users buy our independently chosen editorial recommendations, we may earn commissions to help fund the Wiki.

This wiki has been updated 19 times since it was first published in August of 2019. For a professional mechanic, a fuel pressure tester is an indispensable piece of equipment. It allows for the speedy diagnosis of stalling or failures to start caused by gas pump and flow problems. Our selections considered features such as versatility, build quality, and affordability. Note that working with fuel systems can be dangerous and should only be done by trained automotive technicians. When users buy our independently chosen editorial choices, we may earn commissions to help fund the Wiki.

1. OTC 6550PRO

The OTC 6550PRO (appx. $356) comes with everything you need to hook up to the fuel systems of most makes and models, including a mechanical fuel pressure release connector with a long relief hose that can be used to dispense fuel without spilling it.

Detailed manual
47 different adapters
Durable viton rubber gaskets

2. Lisle 55700

The Lisle 55700 (appx. $301) includes an extensive set of adapters for Schrader valve-style injection systems, like those found on most modern engines. It also includes a coupler that can be placed in a hose to accurately measure flow pressure.

Good for imports and domestic models
Solid brass fittings
Durable molded case

3. Actron CP7818

If the bulk of your work is on US cars, the Actron CP7818 (around $36) is perfect because it will couple with most ported fuel rails. The large 2-1/2-inch gauge has both metric and imperial markings, which is helpful so that you don't have to translate units.

Pressure relief valve for safety
Threads come with teflon
Not for throttle body injections

4. OEM Tools 27167

Along with a standard gauge kit, the OEM Tools 27167 (around $68) includes a digital multimeter that can be used to test for current and pulsation at the fuel injectors. The 41-inch coupler hose comes in handy when you want to hang the gauge from a hood.

Robust crimp fittings
Comes with alligator clips
Electrical leads are quite cheap

5. PMD Products 11500

The PMD Products 11500 (appx. $80) comes with a small low-pressure gauge that can be used to very accurately read systems that operate at under 15 pounds per square inch. This allows you to diagnose General Motors cars equipped with throttle body injections.

Quick-connect fittings
Great for use on european vehicles
Can't be used on diesels

UNDER REVIEW

This item has been flagged for editorial review and is not available.

6. Equus 3640

With its versatile T-adapter, the Equus 3640 (appx. $30) is a very affordable choice for testing anything from hesitation caused by a faulty inline regulator to clogged fuel filters. The threaded fitting snaps onto the gauge hose so you can then screw it into an existing fuel passage.

Handy run-off bleeder
Tester hose is very short
Does not include a case

Last updated by Rafael Perez

Rafael Perez is a doctoral candidate in philosophy at the University of Rochester. His primary focus is the metaphysics of time and the philosophy of mind, with a particular interest in artificial intelligence and antirepresentational models of the mind. He has extensive experience as a mechanic, a construction worker, and a general repairman. This has allowed him to gather a wealth of knowledge on automobile repair, auto parts, carpentry, masonry, welding, and the tools used in those trades. In his spare time, he enjoys playing guitar, woodworking, and fishing.

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